| ICSL | Clinical Studies Ltd 
| Others |
| ICSL | Image Computing Systems Laboratory
| Others |
| ICSL | Independent Coloured Stones laboratory
| Others |
| ICSL | Indian Counter Strike League
| Others |
| ICSL | Information Connectivity Solutions Limited
| Others |
| ICSL | Inns of Court School of Law
| Others |
| ICSL | Institute for Catholic School Leaders
| Others |
| ICSL | Integrated Circuits and Systems Laboratory
| Others |
| ICSL | Intelligent Control Systems Laboratory
| Others |
| ICSL | Inter Community Soccer League
| Others |
| ICSL | Inter County Soccer League
| Others |
| ICSL | Inter-County Soccer League
| Others |
| ICSL | Interfaith Charities of South Lee
| Others |
| ICSL | International Centers for Spiritula Living
| Others |
| ICSL | International Communication Services, Limited
| Others |
| ICSL | International Community School Larissa
| Others |
| ICSL | International Company Services Ltd
| Others |
| ICSL | International Conference of Slavic Libraries
| Others |
| ICSL | International Cyber Snipe League
| Others |
| ICSL | Internet Commerce Security Laboratory
| Others |
| ICSL | Internet Communication Search Language
| Others |
| ICSL | Interstate Consortium on School Leadership
| Others |
| ICSL | Inuit Communications Systems LTD.
| Others |